Portable sump pump



Oct. 18, 1932. H. D. YODER PORTABLE SUMP PUMP Filed' Aug. 22, 1927 ya EH ward D oder Patented Oct'. is, 1932 UNITED sTATEs PATENT OFFICE HOWARDD. YODEB, 0l' DETROIT, MICHIGAN', .ASSIGNB T0 PENBEBTHY INJECTOR COI- yPANY, OF DETROIT, MICHIGAN, A CORPORATION OF DELAWARE.

' ron'rnmn sum1 rum? Application. led Augult 22, 1827. Serial N0.-214,519.

' An object of this invention is to provide an exceedingly compact sumppumping device to economize floor space by disposing the pump, thestrainer, the control float, and' i the driving motor in verticalalignment.

A further object of this invention is to provide a sump pumping devicehaving a vertical tube or shaft casing supported by -a spider bracket ona pump so that the casing may serve as a guide for the float and themotor control means operated by the float, and to support the drivingmotor and house the driving shaft extending between the motor and thepump.

An important object of this invention is to provide in a sump pumpingdevice of the class described means whereby the driving shaft enters thepump casing through the suction side of the pump without requiring apacked joint between theshaft and the pump.

Other and further important objects of this invention will be apparentfrom the disclosures in thespecification and the accompanying drawing. y

This invention (in a. preferred form) isillustrated in the drawing andhereinafter more fully described.

On the drawing:

Figure 1 is a side elevation of the assembled pump.

Figure 2 is a fragmentary section view of the pump of Figure 1, lookingfrom the left, and with parts in elevation.

As shown on the drawing: The reference numeral 10 indicates a sump pumpbase upon which is detachably mounted a centrifugal sump pump casing 11.Within the casing is an impeller 12 which is driven by a vertical shaft13 housed in a tube 14. Integral with the pump casing 11 is a tubesupporting member or spider 17 comprising upwardly extending finscarrying an 1ntegrally formed annular cup-like ring 18 havmg a rightangled inwardly projecting portion 19 and downwardly depending therefroma collar member 20 carrying a guiding sleeve bearing 21 in which theshaft 13 is journaled. The inner face of the wall of the rlng 18 isthreaded to engage with threads on the outer face of the tube 14 whilethe lower end of the tube bears on an abutment formed by the projection19. A set screw 22 locks the tube in place in the ring 18.

A strainer 16 is detachably secured on top of the pump casing 11 andforms a housing protecting the tube supporting means 17.

The upper wall of the pump casing 11 has al central opening throughwhich the shaft 13 projects and through which the liquid to be pumpedpasses to the impeller 22 for discharge through the outlet 39 and itsconf nections.

It is important to note that because the shaft 13 is housed in the tube14 seated in the tube support 17 and is guided through the sleeve 2ltherein it passes through the suction opening of the pump withoutrequiring a packedA joint.

The tube 14 guides a metal float 23 and the float alternately engageswith ioat travel limit stops 24 and 25. The limit stops consist of rings24 and 25 fitting loosely around the tube 14 and having suitable meansfor detachably connecting them with a switch operating rod 26. Theswitch operating rod engages a switch lever 27 of a switch 28 mountedona casing 36 to control a motor 29.

The upper portion of the Atube 14 threadedly engages a sleeve coupling30 and abuts an inwardly projecting annular shoulder 31 near the lowerend of the coupling 30. A set screw 32 locks the tube in the coupling30. An apertured partition 33 on the upper end of the coupling carries aguiding sleeve 34 in which the shaft 13 is journaled.l

The shaft 13 and its attached impeller 12 is held suspended by suitablebearing means 35 housed in the casing 36 as shown. The casing 36threadedly engages with the upper end of the sleeve coupling 30 and theset screw 37 locks it in position.

The motor 29 is suitably mounted on the upper end of the casing 36 andthe motor shaft is cou led to the pump shaft 13 by means of a exiblecoupling 38 housed4 within the casing.

The stop rings 24 and 25 are adjustable along the tube 14. The fioat2.3, when the pump is inserted in a sump or like place for pumpingpurposes, and the stops 24 and 25` are adjusted to the height of thewater to be pumped. The fioat 23 will bemoved upwardly against the upperstop 25, thereby actuating the switch 28 to operate the motor. The motorwill continue until the float 23 drops, engaging the lower stop 24,whereupon the switch is actuated to stop the motor.

The device is a portable sump pump and may be readily carried from placeto place.

The outlet 39 has connected to it hose or other connections fordelivering the fluid pumped to any place of disposal.

The strainer 16 prevents the`entry into the pump casing of -dirt and thelike, thus permitting an operation of the pump under usual conditions ofservice.

I aim aware that many changes may be made, and numerous details ofconstruction may be varied through a wide range without departing fromthe principles of this. invention, and I therefore do notpurpose'limiting the patent granted hereon, otherwise tha necessitatedby the prior art.

I claim as my invention:

1. A portable electricbsump pump comprising a base, a centrifugal pumpcasing on said base, an impeller in said pump casing, a spider onsaid-pump casing terminating in a cup, a shaft tube extending upwardlyfrom the cup, a motor on the upper end of said tube, 'and a shaft withinsaid tube carrying said impeller, said shaft being mainly supported bybearings adjacent the upper end of said tube, a iioat guided on saidtube, and a motor switch arranged to be actuated by said float.

2. A portable electric sump pump comprising a base, a cylindrical pumpcasing on the base, a spider integral with said pump casing andextending above the same and terminating in a cup, a shaft tube suported in said cup, a casing on the upper en of said tube, a motorsupport on said last mentioned cascasing and extending above the sameand terminating in a cup, a'shaft tube4 su ported in said cup, a casingon the uiper en of said tube, a motor support on sai ast mentioned casina shaft connected to the motor passin t rough said tube and carrying animpe ler at its lowerY end in said pump casing, a bearing in the casingat the upper end of said tube for sus ending said s aft in said tube, astrainer a ove the pump casing and about said spider, a float ided onsaid tube, and adjustable connections responsive to movement of saidfloat for controlling the motor.

4. A portable electric sump pump comprising a base, a cylindrical pumpcasing on the base, a spider integral with said pump casing andextending above the same and terminating in a cup, cup, a casing on theupper en of said tube, a motor support on sai ast mentioned casing,

a shaft connected tothe motor passingA through said tube and carrying anim eller at its lower end in said'pump casing, a earing in the casing atthe upper end of said tube for suspending said shaft in said tube, astrainer4 above the casing and about said spider, a 'de or t e lower endof said shaft include in said spider, the upper wall ofl said pumpcasing having an o nin through which said guide passes and-t roug whichliquid is delivered to the pump casing. 5. A portable sump pumcomprising driving means, a base, a centri ugal pump'casing on said basehaving a top inlet, an impeller in said vpump casing, a cup shapedsupport on the casing having a reduced tubular portion depending throughvthe casing inlet, a vertical tube carrie by said support, a shaftrotated in said tube and connecting said driving means to said impeller,said shaft extending through and guided within the said tubular portionof said support, and control means lfor the driving means associatedwith and guided by said tube.

In testimony whereof I have hereunto subscribed my name at Detroit,Wayne County,

Michigan.

HOWARD D.A YODER.

ing, a shaft connected to the motor passing v through said tube andcarrying an imlpller at its lower end in said pump casing, a caring inthe casing at the upper end of said tube for suspending said shaft insaid tube, a strainer above the pum casing and about said spider, andautomatic means for controlling said motor responsive to the depth offluid about said pump.

3. A portable electric sump pump comprising a base, a cylindrical pumpcasing on the base, a spider integral with said pump a shaft tubesupported in said los iis

